Chrysler Repair: Chrysler 2.5L Stalling when coming to a stop, vacuum line, wd 40

Question
I have a 96 Cirrus with a 2.5L.  It has an intermittent problem with stalling.  It will stall when coming to a stop or at a stop.  It usually happens once or twice after I start driving after the car has sat overnight or all day at work.  After one or two stalls it doesn't do it anymore until it sits for awhile again.

Answer
Hi Kevin,
I would suspect that the egr valve is hanging up slightly ajar when you come to a stop. That would lean out the mixture and cause the stall. The valve is located in the small pipe that runs from the front exhaust manifold around to the rear of the engine near the throttle body. It has a body bolted into that pipe, a round vacuum line-operated top and between the two is a flange which contains a rod which is the stem of the valve. It has a circumferential slot into which you can put the tip of a screwdriver so as to move the stem back and forth, which replicates opening and closing the valve. It should close firmly under spring tension. If it is hanging up then you can spray some WD-40 on the stem where it enters the body and move the stem some more till it moves freely and closes thightly via the spring. That should solve the problem. If that doesn't do it then try to get some fault codes that the engine controller might have store in its memory:
Try the ignition key to get a fault code from the engine controller to find out which: "On-off-on-off-on and leave on" doing that in 5 seconds or less elapsed time. Then watch the check engine light that remains 'on' to begin to flash, pause, flash, etc. Count the flashes before each pause, then repeat to assure an accurate count. Then group the counts in pairs to form the 2-digit fault code numbers.  The last code will always be 55 which means end of readout. Let me know what you find and we can go from there.
Roland